Effect of inoculum concentrarion on biogas production performance during mixed digestion of silages corn stalk and cattle dung

	Effect of inoculum concentrarion on biogas production performance during mixed digestion of silages corn stalk and cattle dung
	Ren, Haiwei 1,2,3; Yao, Xingquan 1,2; Li, Jinping 1,3; Li, Zhizhong 2; Wang, Yujie 1,2; Wang, Chunlong 1,3
刊名	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
	2018-12-28
卷号	39 期号:12 页码:3458-3465
关键词	Ammonia Biogas Cellulose Chemical oxygen demand Crystallinity Degradation Fermentation Scanning electron microscopy Volatile fatty acids Anaerobic co-digestion Cattle dung Inoculum concentrations Silage stalk Structural characterization
ISSN号	02540096
英文摘要	In order to further optimize the anaerobic fermentation conditions of silage stalk, study the effects of different inoculum concentrations (20%, 25% and 30%) on the biogas production performance of mixed anaerobic digestion of silage corn stalk and cattle dung under the condition of medium temperature of 37 and total solid concentration of 10%, and examine the gas production parameters, volatile fatty acids (VFAs) in the fermentation broth, chemical oxygen demand (COD) and ammonia nitrogen [(NH+4-N)] content, and chemical composition and structural changes before and after stalk digestion. The results of anaerobic digestion show that the biogas production performance with the inoculum concentrations of 30% is better than other groups (20%, 25%), the cellulose and hemicellulose degradation rates of this group are the highest, 27.31% and 49.77%, respectively, but the lignin is almost not decomposed. The structural performance results of scanning electron microscopy (SEM) and X-ray diffraction (XRD) indicate that the lignocellulosic matrix changes before and after co-digestion of stalk is significant, and the cellulose crystallinity reduces, the lignocellulosic structure damage of stalk is the most serious when the inoculation amount is 30%, and the crystallinity index is the smallest. Therefore 30% inoculum concentration is recommended. © 2018, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114450]
专题	能源与动力工程学院生命科学与工程学院
作者单位	1.Western China Energy & Environment Research Center, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.China Northwestern Collaborative Innovation Center of Low-carbon Urbanization Technologies, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Ren, Haiwei,Yao, Xingquan,Li, Jinping,et al. Effect of inoculum concentrarion on biogas production performance during mixed digestion of silages corn stalk and cattle dung[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2018,39(12):3458-3465.
APA	Ren, Haiwei,Yao, Xingquan,Li, Jinping,Li, Zhizhong,Wang, Yujie,&Wang, Chunlong.(2018).Effect of inoculum concentrarion on biogas production performance during mixed digestion of silages corn stalk and cattle dung.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,39(12),3458-3465.
MLA	Ren, Haiwei,et al."Effect of inoculum concentrarion on biogas production performance during mixed digestion of silages corn stalk and cattle dung".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 39.12(2018):3458-3465.